Plagiotrochus marianii (Kieffer, 1902)

on Quercus, agamous generation

gall

Very inconspicuous swelling, 4-5 x 6 mm, of the bark of a 10-20 years old branch. Below an elliptic, ± 4 mm long gall chamber. Often several galls together.

host plants

Fagaceae, narrowly monophagous

Quercus cerris, ilex, suber.


on Quercus, sexual generation

gall

Thin-walled, unilocular, oval bud gall, 1.5 mm long with a somewhat curved tip, covered by long extending hairs. Usually a single gall in the axil of a leaf.

host plants

Fagaceae, narrowly monophagous

Quercus cerris, ilex.

synonyms

Fioriella marianii; Callirhytis, Fioria, Fiorella, meunieri Kieffer, 1902.

notes

Melika (2006a) expresses doubt about the identity of the sexual generation.

references

Buhr (1965a), Houard (1908a), Melika (2006a), Melika, Csóka & Pujade-Villar (2000a), Melika, Ros-Farré & Pujade-Villar (2001a), Rohwer & Fagan (1917a), Roskam (2019a), Tomasi (2014a).

mod 27.xi.2019